﻿using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Basic Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234237

namespace Program_Camera
{



    /// <summary>
    /// A basic page that provides characteristics common to most applications.
    /// </summary>
    public sealed partial class MediaCapture : Program_Camera.Common.LayoutAwarePage
    {
        Windows.Media.Capture.MediaCapture mediaCaptureMgr;


        public MediaCapture()
        {
            this.InitializeComponent();
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
        {
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="pageState">An empty dictionary to be populated with serializable state.</param>
        protected override void SaveState(Dictionary<String, Object> pageState)
        {
        }

        private void sldBrightness_ValueChanged(object sender, RangeBaseValueChangedEventArgs e)
        {
            try
            {
                bool succeeded = mediaCaptureMgr .VideoDeviceController.Brightness.TrySetValue(sldBrightness.Value);
            }
            catch { 
            
            }
           
        }

        private void sldContrast_ValueChanged(object sender, RangeBaseValueChangedEventArgs e)
        {
            try
            {
                bool succeeded = mediaCaptureMgr.VideoDeviceController.Contrast.TrySetValue(sldContrast.Value);
            }
            catch 
            {
            }
        }

        private async void Take_Video(object sender, RoutedEventArgs e)
        {
            mediaCaptureMgr = new Windows.Media.Capture.MediaCapture();
            await mediaCaptureMgr.InitializeAsync();
            previewCanvas1.Visibility = Windows.UI.Xaml.Visibility.Visible;
            previewElement1.Source = mediaCaptureMgr;
            await mediaCaptureMgr.StartPreviewAsync();
            if ((mediaCaptureMgr.VideoDeviceController.Brightness != null) && mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Supported)
            {
                sldBrightness.IsEnabled = true;
                sldBrightness.Maximum = mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Max;
                sldBrightness.Minimum = mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Min;
                sldBrightness.StepFrequency = mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Step;
                double controlValue = 0;
                if (mediaCaptureMgr.VideoDeviceController.Brightness.TryGetValue(out controlValue))
                {
                    sldBrightness.Value = controlValue;
                }

            }
            if ((mediaCaptureMgr.VideoDeviceController.Contrast != null) && mediaCaptureMgr.VideoDeviceController.Contrast.Capabilities.Supported)
            {
                sldContrast.IsEnabled = true;
                sldContrast.Maximum = mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Max;
                sldContrast.Minimum = mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Min;
                sldContrast.StepFrequency = mediaCaptureMgr.VideoDeviceController.Brightness.Capabilities.Step;
                double controlValue = 0;
                if (mediaCaptureMgr.VideoDeviceController.Brightness.TryGetValue(out controlValue))
                {
                    sldContrast.Value = controlValue;
                }
            }
        }
    }
}
